SecuriTricks - CVE-2026-6552

Description

GitLab has remediated an issue in GitLab EE affecting all versions from 15.5 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions could have allowed an authenticated user with group Owner role to take over another group member's GitLab account due to improper authorization in the Group SAML identity management functionality.

Product(s) Impacted

Vendor	Product	Versions
Gitlab	Gitlab Ee	15.5, 18.10.0-18.10.7, 18.11.0-18.11.4, 19.0.0-19.0.1

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-639

Authorization Bypass Through User-Controlled Key

The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	gitlab	gitlab_ee	15.5	/	/	/	/	/	/	/
a	gitlab	gitlab_ee	18.10.0-18.10.7	/	/	/	/	/	/	/
a	gitlab	gitlab_ee	18.11.0-18.11.4	/	/	/	/	/	/	/
a	gitlab	gitlab_ee	19.0.0-19.0.1	/	/	/	/	/	/	/

References

https://about.gitlab.com/releases/2026/06/10/patch-release-gitlab-19-0-2-released/

https://gitlab.com/gitlab-org/gitlab/-/work_items/597295

https://hackerone.com/reports/3655189

CVSS Score

8.7 / 10

CVSS Data - 3.1

Attack Vector: NETWORK
Attack Complexity: LOW
Privileges Required: HIGH
Scope: CHANGED
Confidentiality Impact: HIGH
Integrity Impact: HIGH
Availability Impact: NONE

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N

View Vector String

Timeline

Published: June 11, 2026, 12:16 p.m.
Last Modified: June 11, 2026, 12:16 p.m.

Status : Received

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

[email protected]

CVE-2026-6552